{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1994:KSNRH4LFMTNJDA5ZFXSUG42ER3","short_pith_number":"pith:KSNRH4LF","canonical_record":{"source":{"id":"astro-ph/9411011","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1994-11-02T20:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"fdec065999358ed716d0aa37e6f34bf16560718182e0d5a7bc084d2e01c68bab","abstract_canon_sha256":"08754a5292c8498484f01025b7b41e9d96dc149477cbfa0fef26560972a96e6f"},"schema_version":"1.0"},"canonical_sha256":"549b13f16564da9183b92de54373448ec0677c2701865668a761d4539a268086","source":{"kind":"arxiv","id":"astro-ph/9411011","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9411011","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9411011v1","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9411011","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_12","alias_value":"KSNRH4LFMTNJ","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_16","alias_value":"KSNRH4LFMTNJDA5Z","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_8","alias_value":"KSNRH4LF","created_at":"2026-07-04T15:56:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1994:KSNRH4LFMTNJDA5ZFXSUG42ER3","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9411011","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1994-11-02T20:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"fdec065999358ed716d0aa37e6f34bf16560718182e0d5a7bc084d2e01c68bab","abstract_canon_sha256":"08754a5292c8498484f01025b7b41e9d96dc149477cbfa0fef26560972a96e6f"},"schema_version":"1.0"},"canonical_sha256":"549b13f16564da9183b92de54373448ec0677c2701865668a761d4539a268086","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:56:10.189038Z","signature_b64":"wGZx+BXN8kDR+PBM05rYQLn3FRWZsEOYYfOsNiTiTlkyjdVz/GaczMv/oW1Ez7GCbk86r9f7Nm/a6j0CroP4BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"549b13f16564da9183b92de54373448ec0677c2701865668a761d4539a268086","last_reissued_at":"2026-07-04T15:56:10.188603Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:56:10.188603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9411011","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:56:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DEo9rx51hhJmxHjhOb7UOywN1yoFGCjcJyItaKbjgpmnDI+oStcqLXvEqsNQCwpPFDT24Z1QfzMVYq0o1e9EDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T15:14:37.737912Z"},"content_sha256":"6575391e18a9a0004994eb115b5d1eafa62f025d26f586dec0c3d2d3e079d858","schema_version":"1.0","event_id":"sha256:6575391e18a9a0004994eb115b5d1eafa62f025d26f586dec0c3d2d3e079d858"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1994:KSNRH4LFMTNJDA5ZFXSUG42ER3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Evolution of C/O in Dwarf Galaxies from HST Fos Observations","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. R. Garnett, E. D. Skillman, E.Terlevich, G. A. Shields, M. Peimbert, R. J. Dufour, R. J. Terlevich, S. Torres-Peimbert","submitted_at":"1994-11-02T20:24:04Z","abstract_excerpt":"We present FOS observations of O III] 1666 A and C III] 1909 A emission in H II regions in dwarf irregular galaxies to measure C/O abundance ratios in those galaxies. We observe a continuous increase in C/O with increasing O/H over the range -4.7 < log(O/H) < -3.6. One interpretation is that the most metal-poor galaxies are the youngest and dominated by the products of early enrichment by massive stars, while more metal-rich galaxies show increasing, delayed contributions of C from intermediate mass stars. However, recent evolution models for massive stars including mass loss suggest that the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9411011","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9411011/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:56:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yZ49aZ/3Etjad45PprwvEmqyqqBcmATYfSPxsODuEOg8ROmVLiztgkAdFv3Bd6Bq94k+YRplHwt0hEafUlz+CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T15:14:37.738452Z"},"content_sha256":"ae63553c908754002b8033e1ee740f584dadc6c2b8de4a8acd2830fb0baa101f","schema_version":"1.0","event_id":"sha256:ae63553c908754002b8033e1ee740f584dadc6c2b8de4a8acd2830fb0baa101f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/bundle.json","state_url":"https://pith.science/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-21T15:14:37Z","links":{"resolver":"https://pith.science/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3","bundle":"https://pith.science/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/bundle.json","state":"https://pith.science/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KSNRH4LFMTNJDA5ZFXSUG42ER3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1994:KSNRH4LFMTNJDA5ZFXSUG42ER3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"08754a5292c8498484f01025b7b41e9d96dc149477cbfa0fef26560972a96e6f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1994-11-02T20:24:04Z","title_canon_sha256":"fdec065999358ed716d0aa37e6f34bf16560718182e0d5a7bc084d2e01c68bab"},"schema_version":"1.0","source":{"id":"astro-ph/9411011","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9411011","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9411011v1","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9411011","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_12","alias_value":"KSNRH4LFMTNJ","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_16","alias_value":"KSNRH4LFMTNJDA5Z","created_at":"2026-07-04T15:56:10Z"},{"alias_kind":"pith_short_8","alias_value":"KSNRH4LF","created_at":"2026-07-04T15:56:10Z"}],"graph_snapshots":[{"event_id":"sha256:ae63553c908754002b8033e1ee740f584dadc6c2b8de4a8acd2830fb0baa101f","target":"graph","created_at":"2026-07-04T15:56:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9411011/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present FOS observations of O III] 1666 A and C III] 1909 A emission in H II regions in dwarf irregular galaxies to measure C/O abundance ratios in those galaxies. We observe a continuous increase in C/O with increasing O/H over the range -4.7 < log(O/H) < -3.6. One interpretation is that the most metal-poor galaxies are the youngest and dominated by the products of early enrichment by massive stars, while more metal-rich galaxies show increasing, delayed contributions of C from intermediate mass stars. However, recent evolution models for massive stars including mass loss suggest that the ","authors_text":"D. R. Garnett, E. D. Skillman, E.Terlevich, G. A. Shields, M. Peimbert, R. J. Dufour, R. J. Terlevich, S. Torres-Peimbert","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1994-11-02T20:24:04Z","title":"The Evolution of C/O in Dwarf Galaxies from HST Fos Observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9411011","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6575391e18a9a0004994eb115b5d1eafa62f025d26f586dec0c3d2d3e079d858","target":"record","created_at":"2026-07-04T15:56:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"08754a5292c8498484f01025b7b41e9d96dc149477cbfa0fef26560972a96e6f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1994-11-02T20:24:04Z","title_canon_sha256":"fdec065999358ed716d0aa37e6f34bf16560718182e0d5a7bc084d2e01c68bab"},"schema_version":"1.0","source":{"id":"astro-ph/9411011","kind":"arxiv","version":1}},"canonical_sha256":"549b13f16564da9183b92de54373448ec0677c2701865668a761d4539a268086","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"549b13f16564da9183b92de54373448ec0677c2701865668a761d4539a268086","first_computed_at":"2026-07-04T15:56:10.188603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:56:10.188603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wGZx+BXN8kDR+PBM05rYQLn3FRWZsEOYYfOsNiTiTlkyjdVz/GaczMv/oW1Ez7GCbk86r9f7Nm/a6j0CroP4BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:56:10.189038Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9411011","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6575391e18a9a0004994eb115b5d1eafa62f025d26f586dec0c3d2d3e079d858","sha256:ae63553c908754002b8033e1ee740f584dadc6c2b8de4a8acd2830fb0baa101f"],"state_sha256":"3546fd3e23137ce02b8a9f953180465f2ba055c9cdf08cf33cfcb64a89ab3885"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xn8deRucSRynEDWsNKeLllzj4/efNUbwlS8hw5f5B+R5mFTmJ9iMo6AoVuQPWhd0W7Y0ByObRHLNW/qoAx4JAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T15:14:37.743305Z","bundle_sha256":"ed9495343e3d53c5f751e379f42afa5fd3c94df54ee13983ee335e2df5b08737"}}